CN101183066A - Method for on-line measuring wettability of aluminum liquid to different material - Google Patents
Method for on-line measuring wettability of aluminum liquid to different material Download PDFInfo
- Publication number
- CN101183066A CN101183066A CNA2007101796418A CN200710179641A CN101183066A CN 101183066 A CN101183066 A CN 101183066A CN A2007101796418 A CNA2007101796418 A CN A2007101796418A CN 200710179641 A CN200710179641 A CN 200710179641A CN 101183066 A CN101183066 A CN 101183066A
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- China
- Prior art keywords
- sample
- aluminium
- test
- wettability
- measurement
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Links
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 48
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 23
- 239000007788 liquid Substances 0.000 title claims abstract description 21
- 239000000463 material Substances 0.000 title claims abstract description 21
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 39
- 238000005259 measurement Methods 0.000 claims abstract description 32
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000011261 inert gas Substances 0.000 claims abstract description 10
- 239000004411 aluminium Substances 0.000 claims description 40
- 238000012360 testing method Methods 0.000 claims description 27
- 238000004506 ultrasonic cleaning Methods 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 5
- 230000002000 scavenging effect Effects 0.000 claims description 4
- 238000000691 measurement method Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 229910001610 cryolite Inorganic materials 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000010406 cathode material Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000007499 fusion processing Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
The present invention relates to an on-line measurement method of the wettability of aluminum liquid to different materials, which is characterized in that the measurement process is as follows: sodium hydroxide solution and acetone solution are applied to be aluminum sample which is cleaned by ultrasonic; the aluminum sample is dried and placed on a bottom sample and then is sent into a measurement equipment; the measurement equipment is filled with inert gases and is vacuumized; and then temperature is raised; the vacuum station is kept in the process of temperature raising; the measurement is carried out after being melted. With the method provided by the present invention, the problem that the measured sample is difficult to be melted is effectively overcome and the on-line measurement of the wettability of aluminum liquid to different materials is effectively realized.
Description
Technical field
The present invention relates to the measuring method of a kind of on-line measurement aluminium liquid to the different materials wettability.
Background technology
In the Aluminium Electrolysis, the wettability of aluminium liquid anticathode material is extremely important, and good aluminium liquid wettability can effectively reduce the corrosion and the infiltration of electrolyte anticathode material, reduces cathode drop, prolongs groove life.The wettability of research aluminium liquid anticathode material seems particularly important for the selection of cathode material.
Aluminum matrix composite is a kind of very potential metal-base composites, in the preparation of aluminum matrix composite, be exactly to weigh the basic parameter that can this system compound substance prepare and how to prepare as the aluminium of matrix material and the wetting state of alloy on other materials thereof.Therefore liquid aluminium obtains paying attention to and research in the wetting state of the solid material surface basic physicochemical property as material all the time.
Chinese Aluminium Co., Ltd is in patent (application number 200720149574.0), a kind of on-line measurement aluminium liquid and the cryolite fused salt measurement mechanism to the wettability of various materials is disclosed, a kind of effective measurement mechanism is provided, during test specimen being put into device melts, test, respond well.But in practical operation, because the activity of aluminium is very strong, the very easily oxidized pellumina that generates densification, and the phenomenon of specimen fusing difficulty usually can take place up to 2050 ℃ in the fusing point of aluminium oxide, influences test operating procedure and test result.
Summary of the invention
The objective of the invention is the deficiency that exists at above-mentioned prior art, provide a kind of and can effectively overcome specimen fusing difficulty, influence the method for the on-line measurement aluminium liquid of test process and test result problem the different materials wettability.
The objective of the invention is to be achieved through the following technical solutions.
A kind of on-line measurement aluminium liquid is to the method for different materials wettability, it is characterized in that its test process is that test aluminium sample is put into sodium hydroxide solution and acetone soln, carry out ultrasonic cleaning, will test aluminium sample drying after, be placed on again on the base plate sample and send in the measurement mechanism; Again measurement mechanism is carried out filling with inert gas, vacuumizes; Heat up again, keep vacuum state in the temperature-rise period; Test after the fusing.
A kind of on-line measurement aluminium liquid of the present invention is to the method for different materials wettability, it is characterized in that described process of carrying out ultrasonic cleaning with sodium hydroxide solution and acetone soln, the weight percent concentration of its sodium hydroxide solution is 20%～50%, and scavenging period is 5～10min; Carrying out scavenging period in acetone is 10～20min.
A kind of on-line measurement aluminium liquid of the present invention is to the method for different materials wettability, it is characterized in that the described vacuum tightness that measurement mechanism is carried out filling with inert gas, vacuumizes, keeps in the temperature-rise period vacuum state is 10
-4Pa～10
-5Pa.
Method of the present invention is removed the pellumina on aluminium sample surface by the aluminium sample being carried out pre-service.Following reaction: 4Al can take place under high-temperature condition
(l)+ Al
2O
3 (s)=3Al
2O
(g)By realizing high vacuum tightness under the high-temperature condition, can make vacuum tightness near Al
2The evaporation of oxide takes place in the vapour pressure of O.Further aluminium liquid at high temperature also volatilizees, and makes the interior vacuum tightness of proving installation reach requirement of experiment, thereby reaches the purpose of test aluminium liquid wettability.
Embodiment
A kind of on-line measurement aluminium liquid is to the method for different materials wettability, use the patent No. be a kind of on-line measurement aluminium liquid of 200720149574.0 and cryolite fused salt to the measurement mechanism of the wettability of various materials, may further comprise the steps:
1) the preparation weight percent concentration is 20%～50% sodium hydroxide solution, and the beaker that fills sodium hydroxide solution is placed ultrasonic washer.The aluminium sample is put into sodium hydroxide solution, open ultrasound wave, clean 5～10min.
2) beaker that fills acetone soln is put in the taking-up of aluminium sample, be placed on and clean 10～20min in the ultrasonic washer.Take out after cleaning finishes, use filter paper to blot.
3) the aluminium sample is placed on the sample of different materials, put into quartzy sealed glass tube central authorities rapidly, quartz glass tube is sent in the heating arrangement, seal.
4) to the sealing quartz glass tube charge into high purity inert gas, reach certain pressure after, close air intake valve.Open evacuating valve quartz glass tube is vacuumized, treat that vacuum tightness to vacuum tightness is 10
-4Pa～10
-5Behind the Pa, close evacuating valve.
Open air intake valve, filling with inert gas, after close air intake valve, open evacuating valve, device is vacuumized.Quadruplication like this, vacuum tightness reaches 10
-4Pa～10
-5Pa.Open the vacuum system chilled water, open heating arrangement simultaneously, be warming up to sample and melt by 100 ℃/h～200 ℃/heating rate of h;
5) heating is opened camera head simultaneously, takes or record aluminium sample fusion process.Handle image, draw contact angle and wettability.
Embodiment 1
To test the aluminium sample, to put into weight percent concentration be that 20% sodium hydroxide solution carries out ultrasonic cleaning 10min,, put into acetone soln then, carry out ultrasonic cleaning 10min.After will testing aluminium sample drying, be placed on again on the base plate sample and send in the measurement mechanism; Again measurement mechanism being carried out filling with inert gas, is evacuated to vacuum tightness is 10
-4Pa～10
-5Pa; Heat up, keeping vacuum state vacuum tightness in the temperature-rise period is 10 again
-4Pa～10
-5Pa; Test after the fusing.The fusing of aluminium sample is good in the test process.
Embodiment 2
To test the aluminium sample, to put into weight percent concentration be that 30% sodium hydroxide solution carries out ultrasonic cleaning 8min,, put into acetone soln then, carry out ultrasonic cleaning 15min.After will testing aluminium sample drying, be placed on again on the base plate sample and send in the measurement mechanism; Again measurement mechanism being carried out filling with inert gas, is evacuated to vacuum tightness is 10
-4Pa～10
-5Pa; Heat up, keeping vacuum state vacuum tightness in the temperature-rise period is 10 again
-4Pa～10
-5Pa; Test after the fusing.The fusing of aluminium sample is good in the test process.
Embodiment 3
To test the aluminium sample, to put into weight percent concentration be that 50% sodium hydroxide solution carries out ultrasonic cleaning 5min, puts into acetone soln then, carries out ultrasonic cleaning 20min.After will testing aluminium sample drying, be placed on again on the base plate sample and send in the measurement mechanism; Again measurement mechanism being carried out filling with inert gas, is evacuated to vacuum tightness is 10
-4Pa～10
-5Pa; Heat up, keeping vacuum state vacuum tightness in the temperature-rise period is 10 again
-4Pa～10
-5Pa; Test after the fusing.The fusing of aluminium sample is good in the test process.
Claims (3)
1. an on-line measurement aluminium liquid is to the method for different materials wettability, it is characterized in that its test process will test the aluminium sample and put into sodium hydroxide solution, acetone soln respectively successively, carry out ultrasonic cleaning, will test aluminium sample drying after, be placed on again on the base plate sample and send in the measurement mechanism; Again measurement mechanism is carried out filling with inert gas, vacuumizes; Heat up again, keep vacuum state in the temperature-rise period; Test after the fusing.
2. a kind of on-line measurement aluminium liquid according to claim 1 is to the method for different materials wettability, it is characterized in that describedly carrying out the ultrasonic cleaning process with sodium hydroxide solution and acetone soln, the weight percent concentration of its sodium hydroxide solution is 20%～50%, and scavenging period is 5～10min; Carrying out scavenging period in acetone is 10～20min.
3. a kind of on-line measurement aluminium liquid according to claim 1 is to the method for different materials wettability, it is characterized in that the described vacuum tightness that measurement mechanism is carried out filling with inert gas, vacuumizes, keeps in the temperature-rise period vacuum state is 10
-4Pa～10
-5Pa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101796418A CN101183066A (en) | 2007-12-17 | 2007-12-17 | Method for on-line measuring wettability of aluminum liquid to different material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101796418A CN101183066A (en) | 2007-12-17 | 2007-12-17 | Method for on-line measuring wettability of aluminum liquid to different material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101183066A true CN101183066A (en) | 2008-05-21 |
Family
ID=39448417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101796418A Pending CN101183066A (en) | 2007-12-17 | 2007-12-17 | Method for on-line measuring wettability of aluminum liquid to different material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101183066A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107407623A (en) * | 2015-04-21 | 2017-11-28 | 韩国产业技术大学校 | The device and method of liquid oxygen compound and soild oxide immersion angle of the measurement with reactivity |
| CN112748108A (en) * | 2020-12-15 | 2021-05-04 | 中国科学院国家空间科学中心 | Real-time measuring system for wettability parameter of space high-temperature melt material |
| CN114279896A (en) * | 2020-09-27 | 2022-04-05 | 上海交通大学 | Sealing chamber seat dripping method for observing wetting angle of molten aluminum |
-
2007
- 2007-12-17 CN CNA2007101796418A patent/CN101183066A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107407623A (en) * | 2015-04-21 | 2017-11-28 | 韩国产业技术大学校 | The device and method of liquid oxygen compound and soild oxide immersion angle of the measurement with reactivity |
| CN107407623B (en) * | 2015-04-21 | 2019-01-11 | 韩国产业技术大学校 | Measure the device and method with reactive liquid oxygen compound and soild oxide immersion angle |
| CN114279896A (en) * | 2020-09-27 | 2022-04-05 | 上海交通大学 | Sealing chamber seat dripping method for observing wetting angle of molten aluminum |
| CN112748108A (en) * | 2020-12-15 | 2021-05-04 | 中国科学院国家空间科学中心 | Real-time measuring system for wettability parameter of space high-temperature melt material |
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Open date: 20080521 |